OF MARINE COASTS. Ill 



Is nearly related to I. pes caprae Eoth, and differs mainly by having 

 a more succulent, narrower leaf, less prominently veined. 



I. palmata Forst. 



Glabrous, twining; leaves digitately divided into 5 — 7 ovate-lanceo- 

 late, obtuse, 3 — 5 cm. long lobes; corolla purple or white; seeds pubes- 

 cent, with long silky hairs. 



On tropical coasts in Asia, Africa, and America. In Australia quite 

 abundant at Moreton Bay, and near Tweed Eiver and Port Jackson in 

 New South Wales. Also on North coast of North Island, New Zealand. 



I. paniculata E. Br. 



Perennial ; stems trailing, glabrous, leaves palmately divided to below 

 middle into 5— 77 ovate-lanceolate, obtuse lobes; the whole leaf 12 — 20 

 cm. long and broad ; flowers large. 



Tropical coasts of Asia, Africa, Australia, and America. Also in 

 West Indies. 



I. pes caprae Eoth. 



Glabrous perennial, with up to 40 m. long, prostrate, trailing stems; 

 leaves orbicular, obtusely 2-lobed, somewhat fleshy, 5 — 8 cm. long, on 

 long petioles; flowers large, pink; seeds hairy. 



On sandy shores of the tropics. Abundant on East Australian coast 

 southward to Eichmond Eiver. Used in India (Madras) as a sand stay. 



SOLANACEAE. 



Nicotiana glauca Grahan. 



from Argentine and Uruguay is grown in a few places on coastal sands 



of Australia, and is considered by some authors as a very good sand stay. 



Solarium nigrum L. 

 in various forms is often found on dunes in Northern Europe and Cali- 

 fornia, and S. sodomaeum L. on those of Australia, New Zealand, and 

 the Iberian Peninsula, but both species are inland plants. 



SCROPHTJLARIACEAE. 

 Gastilleja latifolia H. & A. 

 Eoot-parasitic perennial herb, (sometimes suffrutescent), 15 — 45 cm. 

 high; herbage viscid-pubescent, leaves thick, alternate, ovate or obovate, 

 mostly less than 3 em. long, sessile; flowers dull-yellowish, the bracts 

 and calyx lobes more showy than corolla. 

 Coastal cliffs and sands of California. 



